Indian Doppler Radar (INDRA-I): INDRA is a
2D mobile surveillance radar for low level target detection. The radar is
housed in two wheeled vehicles. Some of the main features are automated
Track While Scan (TWS), integrated IFF and high scan rate for high speed
target detection. The radar is produced by M/s BEL and inducted into
Service.

Indra-II PC Radar: It is a variant of INDRA radar for ground controlled interception of targets for the Indian Air Force. The radar uses pulse compression for detection of low flying aircrafts in heavy ground clutter with high range resolution. Radar has good ECCM capabilities. The radar has been produced by M/s BEL and is used by Indian Air Force and Army.

Battle Field Surveillance Radar – Short
Range (BFSR-SR):The Battle Field
Surveillance Radar - Short Range (BFSR-SR) is a man portable, battery
operated Surveillance Radar. The system has capability to detect, track
and classify variety of moving ground surface targets. BFSR-SR is a
reliable sensor for all weather, and day and night operation. The radar
can be carried in three man-packs.The radar is a simple, easy to
use and user friendly surveillance e-sensor, in that an Infantry soldier
can install and effectively put the radar into operation within five
minutes. It has been built to be a reliable surveillance and tracking
radar to search a specific sector to detect and perform track while scan
for multiple targets like crawling man, single / group of walking light / heavy vehicle.

Men and
Audio and visual aids help identify and classify a
target decisively. The radar has a facility to
operate from a distance of more than 100 meters, using field cable to help
a soldier to operate the radar from the safety of bunkers or trenches, and
deploy the radar at a suitable spot to meet technical and tactical
requirements.

BFSR-SR has built-in
networking facility, which offers significant wide area surveillance with
integrated surveillance picture available centrally at an identified
location. All radars can be controlled from the central location. BFSR-SR
with co-mounted IR sensor for enhanced target information is also
available. The radar has been productionised by M/s BEL and inducted into
Army.

Maritime Patrol Airborne Radar XV – 2004 is versatile maritime surveillance airborne radar delivering excellent performances in maritime surveillance, search and rescue missions. The radar is easily adaptable on multiple platforms to search, detect and track multiple targets at long range. The radar has good sea clutter suppression features to detect small targets. In addition to the standard air to surface search modes with TWS, this radar provides high resolution Range Signature (RS) profile and Inverse Synthetic Aperture Radar (ISAR) image of the target. This enables the classification of the intercepted target. The radar can detect and track aerial targets. Secondary modes of the radar include coastal mapping, weather avoidance and SART beacon. The radar provides full azimuth coverage either in belly mounted or in chin mounted configuration.

3D Medium Range Surveillance Radar: Rohini: 3D Medium Range Surveillance Radar, Rohini is a ground based mechanically scanning S-Band pulse Doppler radar for air space surveillance to detect and track air targets with reliability, even under hostile EW operational environment for the Indian Air Force. The radar scans the air space 360 in Azimuth and 30 in elevation upto 18 km height. The flexible architecture is a reliable and adaptable technology for multiple applications early warning for air defence weapon system, air defence sensor at airbases. The radar has advanced technologies like digital receiver, programmable signal processor providing high resolution, accuracy, response and information availability. The software controlled high-speed digital technologies offer real time configuration to the operational crew.

The advanced software algorithms, multiple high speed processors, and state-of-the-art digital technologies have made the radar an effective but user friendly sensor providing 24 x 7 airspace awareness to the Commanders during peace and war time.
The radar is packaged on two high mobility TATRA vehicles to meet operational and battlefield mobility requirements. 2 x 125 kVA generators are housed on a third TATRA vehicle. The radar, which is easy to operate, mobile, transportable by air, rail and road, can be deployed and decamped in less than 30 minutes.

3D Surveillance Radar System : Revathi: The scope of the radar is: Medium Range 3D air surveillance for interception, 3D Target tracking and indication, and sea surface surveillance as primary sensor. The radar is based on state-of-the-art technology. The radar has been realised using concurrent Engineering approach with industry partners: M/s BEL and M/s L&T.

3D Tactical Control Radar (3D TCR): The 3D Tactical Control Radar (TCR) is a Tatra VVL mounted, mobile stand-alone medium range, all weather 3D surveillance Radar for detection and identification of aerial targets. Pertinent data can be collected at Target Data Receiver (TDR), 20 Kms away from the Radar. The radar operates in S-band and is capable of Track-While-Scan (TWS) of airborne targets up to 90kms for fighter aircrafts and 65 Kms for UAVs, subject to radar horizon. The antenna is mechanically rotated in azimuth to provide 360 deg and 50 deg elevation coverage upto 10 Kms height.

Low level Light Weight 2D Radar - BHARANI: Low level Light Weight L-Band 2D Radar is a light weight, battery powered and compact sensor which provides 2D surveillance solution to alert Army Air Defence Weapon Systems mainly in mountainous terrain against hostile aerial targets like UAVs, RPVs, helicopters and fixed wing aircraft flying at low and medium altitudes. The radar can be transported by vehicles, animal transport or group of men or as helislung loads. It can be dismantled into packages to facilitate quick installation and re-location in mountainous terrain. It will act as an early warner to air defence weapon systems employed to provide protection to vulnerable areas or vulnerable points.

The system consists of radar, Commander Display Unit (CDU) and messaging unit Target Designation Unit (TDU) and Target Data Receivers (TDR). One radar can service upto 10 TDRs using existing combat radio resources/ network. The CDU can be located upto 750m from the radar. The radar with modular architecture, advanced ECCM features, ruggedness as per Mil standards can be operated in varied conditions including extreme climatic and geographical conditions and in battle field situations, especially offensive EW environment.
The radar detects and tracks short range air-to-ground threats with a high probability of detection. The radar has an integrated IFF that can detect, confirm, classify and attain IFF status on every target in the battle space under surveillance.

As all the main radar subsystems are on the rotating platform, this radar architecture obviates the two most common single point failures by dispensing with high power rotary joints and central transmitter; thereby making the radar system extremely reliable.
The radar is easily re-locatable and can be deployed or decamped in less than 15 minutes. The radar is engineered in multiple packages to enable easy transportability in mountainous terrain by vehicles, group of men, or as an under slung carriage by a helicopter. The remote operation of the radar through Commander's Display Unit (CDU) upto 1 km from the radar provides safety to the crew during operation. The facility also enables the Commander to deploy the radar at a tactically favorable point.
The quadripod-mounted radar is built to operate in networked or stand-alone mode to support joint or independent operations by Air Force. Multi ECCM features help the radar to deliver intended performance even under intense hostile EM environment.
Aslesha being compact, light weight and modular, can be used in different innovative roles like air space surveillance in urban areas for VVIPs, large critical installations.

Long Range Solid State Active Phased Array RADAR

LSTAR system developed under the Technology Demonstration Programme, is a Long Range, Multifunction Solid-State Active Phased Array Radar, mainly for surveillance, detection and tracking of airborne targets. The Radar carries out target detection and provides measurements of range, azimuth, elevation and target speed. The Radar Data Processor (RDP) built into the system provides target identity, target state vector and maintenance of multiple target tracks based on updates. The Radar operates with Low as well as Medium PRF waveforms using Pulse Doppler processing.

FLR : Flight Level Radar for Air Force (RAJENDRA):

RAJENDRA, a multifunction electronically scanned phased array Radar, is the primary sensor at the Flight level for Akash Weapon System which is an air defence system for the Armed Services. The radar has the capability to perform extensive search, track multiple targets and missiles, and to command and guide own multiple functions missiles concurrently. The Rajendra fulfils multiple radar functions like surveillance, tracking and guidance. The radar system is mounted on two wheeled vehicles – Flight Level Radar (FLR) and Flight Control Centre (FCC) - to provide sensor support for all Air Defence operations. The distributed hardware - radar in FLR and control center in FCC - provides distributed work environment and facilities to operate the radar from control center. It is engineered to support Akash Weapon System deployment either in group or autonomous configuration. The radar has built-in UHF communication component providing voice and data communication with squadron control center when deployed in a group. Also, Integrated Radio Line Modem (IRLM) provides data communication to the launchers and to the surveillance radar. Environmentally hardened engineering, flexible architecture for tracked or wheeled platforms, aesthetically designed ergonomics, consistent performance over the years and advanced ECCM capabilities enable the commander to plan the operations for effectiveness and success.

LRDE is developing primary radar (PR) for the Airborne Early Warning & Control (AEW&C) programme.

Development of Medium Power Radar (MPR) – Arudhra:

The objective of this project is to develop 4D Medium Power Radar (MPR) as a sophisticated multi –function sensor using advanced active array technology.

Low Level Transportable Radar (Ashwini)

LLTR is a state-of-the-art 4D active array technology based multifunction radar. This radar is being developed by LRDE to provide airspace awareness about high manoeuvrable targets to gain superiority.

Avalanche
Victim Detector (AVD):It is a
life saving device for use by soldiers operating in the
snow-bound avalanche prone areas to detect victims buried under an
avalanche debris. AVD is a transmitter-cum-direction finding
receiver with a built in directional antenna. The equipment consists of
fully surface mounted device electronic circuitry enclosed in a sealed
light-weight container of glass filled nylon. The system has been
manufactured by private industry in large numbers and is being used
effectively by Services.